Gulf-to-Bay property located on the desirable Casey Key. For those seeking the ultimate Florida lifestyle, here you will find your own private sandy beach on the Gulf of Mexico with boat dockage along the Intracoastal waterway. Casey K... more.ey is almost entirely residential with fewer than 400 homes stretching along eight miles of this barrier island. Located between historic downtown Venice and culturally rich Sarasota, there are few places that compare. Build your dream home on this 100-foot wide lot (.64 acres) that would accommodate a large estate or the beach house you have always wished for. Either option would be perfect on this key, where many old and new homes exist in harmony. Survey available by request.